Custom Style Sheets

Can I assign a custom style sheet to my appsmith application? If so, how would I do this?

Hi! Could you share more details on your use case? Currently, it is not possible to add custom CSS, but it is on our radar: [Feature] Custom styling(CSS) for widgets + Option to pass custom class to widgets · Issue #3095 · appsmithorg/appsmith · GitHub
Please upvote this feature request and comment with your use case on GitHub to help us prioritize it.